Susan Brown: So You Want To Study Sharks? September 6, 2017

 

 NOAA Teacher at Sea

Susan Brown

Aboard NOAA Ship Oregon II

September 3 – 15, 2017

 

Mission: Snapper/Longline Shark Survey

Geographic Area of Cruise: Gulf of Mexico

Date: September 6, 2017

 

Weather Data from the Bridge

Latitude: 29 51.066 N
Longitude: 088 38.983W
Sea wave height: .3 m
Wind Speed: 11.6
Wind Direction: 5.3 degrees starboard
Visibility: (ask bridge)
Air Temperature: 27.5 degrees Celsius

Barometric Pressure: 1014.88 mb
Sky: cloudy

 

Science and Technology Log

Lisa Jones is a fisheries biologist and the field party chief responsible for planning and logistics, manning the survey and the day to day operations. She is in charge of the science team. The Captain, Captain Dave Nelson, is charge of the ship. These two work together on the Oregon II making decisions on where we go.

Lisa has been doing this for 20 years and has been to locations including the Gulf of Mexico, Cuba, California, the western north Atlantic, and Mexico. The research has varied from a focus on shark/snapper like the one we are on to marine mammals, plankton, aeriel surveys, and harbor seals. Here are some of the questions I asked. 

Q: What is the most interesting thing you have brought up from the ocean?

L: As far as sharks are concerned, one year off the Florida panhandle, we caught a sixgill shark so big we couldn’t even tag it.

Q: How big do you estimate the size of that shark?

L: Approximately fifteen feet

Q: What got you interested in sharks?

L: When I was working for the Cal Fish and Game, radio tagging and doing aerial surveys for harbor seals, we would see shark bitten seals as well as sharks during the aerial surveys. One of the coolest things we ever saw off the Channel Islands was a blue whale. 

Q: Those are big, right? How big do you think it was?

L: I don’t know but it looked liked a small building in the water.

Q: What is your training?

L: My undergraduate degree is in geology. I took a lot of oceanography classes during that time. Later, in my 30s, I went back to graduate school for a degree in biology in Tennessee. It’s a long story but I knew I wanted to study sharks. Land locked in Tennessee, I attended a national conference that included many shark specialists. I introduced myself to get connected – basically anyone who would talk to me.

Lisa Jones explains a career in shark research, part 1:

Lisa Jones explains a career in shark research, part 2:

What questions do you have for Lisa? Post them in the comment section. She is happy to answer them!

Personal Log

I am adjusting to life on the ship and the 12-hour shifts. It’s been fun learning all the different jobs we have as we rotate through different stations. I have now baited hooks, recorded data on the computer as we deploy baited hooks and retrieve the longline to record what we catch, a slinger where I get the baited line ready to be attached to the longline, the high flyer pushing the buoy out that marks the start and end of the longline, and even tagged a large sandbar shark.

Check out this video of me slinging the bait:

There have been several questions regarding our route. The survey area has changed due to both Hurricane Harvey and Hurricane Irma. The next post will be all about weather so you can see how this has impacted our trip. I am wondering how much these hurricanes have impacted what and how much we catch.

 

Did You Know?

Salinity and dissolved oxygen in the water impacts what we catch.

 

Question of the day:

What advice did Lisa give for anyone interested in doing the kind of work she does? (hint: watch the video embedded in this post)